Allow test to handle both RPCErrorKind.kConnectionDisposed and kServerError codes. These codes can be thrown if the VM shuts down before the service can send its response

Fixes https://github.com/dart-lang/sdk/issues/56909

Change-Id: I8a0a9328f2342811a6c230712c8b908bbd7d828c
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/396120
Auto-Submit: Jessy Yameogo <yjessy@google.com>
Reviewed-by: Ben Konyi <bkonyi@google.com>
Commit-Queue: Ben Konyi <bkonyi@google.com>

pkg/vm_service/test/kill_running_test.dart

@@ -22,7 +22,11 @@ final tests = <IsolateTest>[
       // There's a good chance `kill()` will throw due to the VM shutting down.
       // If an RPCError is thrown, make sure it's actually because the VM
       // service connection has disappeared.
-      expect(e.code, RPCErrorKind.kConnectionDisposed.code);
+      expect(
+        [RPCErrorKind.kConnectionDisposed.code, RPCErrorKind.kServerError.code]
+            .contains(e.code),
+        true,
+      );
     }
   }
 ];